GB673654A - Improvements in the manufacture of water-soluble filaments, films and the like from cellulose ethers - Google Patents

Improvements in the manufacture of water-soluble filaments, films and the like from cellulose ethers

Info

Publication number
GB673654A
GB673654A GB4972/49A GB497249A GB673654A GB 673654 A GB673654 A GB 673654A GB 4972/49 A GB4972/49 A GB 4972/49A GB 497249 A GB497249 A GB 497249A GB 673654 A GB673654 A GB 673654A
Authority
GB
United Kingdom
Prior art keywords
water
per cent
bath
cellulose
soluble
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4972/49A
Inventor
Edgar Bert Johnson
John Frederick Webster
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Acordis UK Ltd
Original Assignee
British Celanese Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by British Celanese Ltd filed Critical British Celanese Ltd
Priority to GB4972/49A priority Critical patent/GB673654A/en
Priority to US143348A priority patent/US2687944A/en
Publication of GB673654A publication Critical patent/GB673654A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
    • D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate

Abstract

Spinning solutions of water-soluble cellulose ethers in a solvent mixture consisting of water and a water-miscible organic liquid or liquids are extruded into a coagulating bath consisting essentially of an organic liquid or liquids miscible in all proportions with the mixture of water and organic liquid or liquids used as the solvent in the spinning solution. The process is applicable to water-soluble methyl cellulose, hydroxy-ethyl cellulose, carboxymethyl cellulose, and hydroxyethyl ethyl cellulose and hydroxyethyl cellulose. Filaments, films and foils may be produced. Preferably methyl cellulose as a 15-25 per cent solution in 60-80 per cent by volume aqueous acetic acid is extruded into a bath of acetone, which may contain up to 5 or 7 per cent of water. The extrusion is preferably carried out at room temperature, but higher or lower temperatures may be used. Other suitable solvents are propionic acid, or other lower fatty acids, methyl alcohol, ethyl alcohol, monoethyl or other lower alkyl mono-ether of ethylene glycol and dioxane. The coagulating bath may be methyl ethyl ketone, diethyl ketone or other lower aliphatic ketone, octyl or other normally liquid alcohol containing more than five carbon atoms, or a normally liquid hydroxy ether. "Lower" compounds are defined as containing not more than five carbon atoms. The filaments may be stretched preferably immediately on leaving the bath while still wet with the bath liquid; alternatively they may be stretched while in the bath or at a later stage while softened, e.g. at 290-310 DEG C. In an example a water-soluble methyl cellulose of methoxyl content 28.0 per cent and viscosity 15.3 centipoises (2 per cent aqueous solution at 20 DEG C.) is dissolved in 70 or 80 per cent (by volume) aqueous acetic acid to give a 20 per cent solution. After filtration and de-aeration it is extruded into a bath of acetone at room temperature. The filaments are stretched on leaving the bath by 50 per cent of their original length and wound as yarns. The yarns are substantially completely water-soluble and have a dry tenacity of about 1.25 g./denier or more.
GB4972/49A 1949-02-23 1949-02-23 Improvements in the manufacture of water-soluble filaments, films and the like from cellulose ethers Expired GB673654A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4972/49A GB673654A (en) 1949-02-23 1949-02-23 Improvements in the manufacture of water-soluble filaments, films and the like from cellulose ethers
US143348A US2687944A (en) 1949-02-23 1950-02-09 Manufacture of water-soluble textile and other materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4972/49A GB673654A (en) 1949-02-23 1949-02-23 Improvements in the manufacture of water-soluble filaments, films and the like from cellulose ethers

Publications (1)

Publication Number Publication Date
GB673654A true GB673654A (en) 1952-06-11

Family

ID=9787345

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4972/49A Expired GB673654A (en) 1949-02-23 1949-02-23 Improvements in the manufacture of water-soluble filaments, films and the like from cellulose ethers

Country Status (2)

Country Link
US (1) US2687944A (en)
GB (1) GB673654A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB796544A (en) * 1954-10-13 1958-06-11 British Celanese Improvements in the manufacture of artificial filaments and like products
US3056163A (en) * 1955-05-18 1962-10-02 American Viscose Corp Spinneret
US2838365A (en) * 1955-12-21 1958-06-10 Eastman Kodak Co Dry spinning process
US4256111A (en) * 1973-10-01 1981-03-17 Kimberly-Clark Corporation Filaments of chemically modified cellulose fibers and webs and products formed therefrom
US4205025A (en) * 1975-12-22 1980-05-27 Champion International Corporation Synthetic polymeric fibrids, fibrid products and process for their production

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE371979A (en) * 1928-11-05
GB375423A (en) * 1931-03-27 1932-06-27 British Celanese Improvements in the production of artificial threads, films and other products by wet spinning processes from solutions of cellulose esters or ethers
NL46526C (en) * 1937-01-19
US2163723A (en) * 1937-11-23 1939-06-27 Celanese Corp Cellulose derivatives and method of preparing same
US2134895A (en) * 1937-12-10 1938-11-01 Celanese Corp Cellulose hydroxy ethers
GB508547A (en) * 1937-12-30 1939-06-30 George William Johnson Improvements in the manufacture and production of compounds soluble or capable of swelling in water from wood
US2308141A (en) * 1941-08-04 1943-01-12 Du Pont Spinning of cellulose acetate gum
US2341586A (en) * 1941-08-07 1944-02-15 Du Pont Wet spinning of cellulose acetate
US2350161A (en) * 1942-06-30 1944-05-30 Hercules Powder Co Ltd Solution of water-soluble cellulose ether
US2495767A (en) * 1946-08-09 1950-01-31 Reid John David Preparation of fibers from carboxymethylcellulose

Also Published As

Publication number Publication date
US2687944A (en) 1954-08-31

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